import { jsonBuilder } from '../lib/json-builder.js';
import { AddTodoSchema, AddProjectSchema } from '../types/mcp.js';
import { AbstractToolHandler, ToolDefinition } from '../lib/abstract-tool-handler.js';
import { z } from 'zod';
type AddParams = z.infer<typeof AddTodoSchema> | z.infer<typeof AddProjectSchema>;
/**
* Unified handler for creating Things 3 items using JSON API
* Supports to-dos, projects, headings, and hierarchical structures
*/
class AddToolHandler extends AbstractToolHandler<AddParams> {
protected definitions: ToolDefinition<AddParams>[] = [
{
name: 'things_add_todo',
description: 'Add a new to-do to Things with full support for checklists to break down complex tasks into manageable steps. Use checklist when task has multiple components that don\'t warrant a separate project.',
schema: AddTodoSchema
},
{
name: 'things_add_project',
description: 'Creates a project in Things with support for sections (headings) and todos. Perfect for complex projects with multiple phases, days, or categories. Headings act as visual dividers - todos that follow a heading in the items array will appear grouped under it.',
schema: AddProjectSchema
}
];
async execute(toolName: string, params: AddParams): Promise<string> {
if (toolName === 'things_add_todo') {
const todoParams = params as z.infer<typeof AddTodoSchema>;
return jsonBuilder.createTodo(todoParams);
} else if (toolName === 'things_add_project') {
const projectParams = params as z.infer<typeof AddProjectSchema>;
return jsonBuilder.createProject(projectParams);
}
throw new Error(`Unknown tool: ${toolName}`);
}
}
export const addToolHandler = new AddToolHandler();
export const addTools = addToolHandler.tools;
export const handleAdd = addToolHandler.handle.bind(addToolHandler);
